Feature of an air treatment device



FIG. 1 is a front perspective view of our feature of an air treatmentdevice;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is bottom plan view thereof.

The features shown in broken lines in the drawings depict environmentalsubject matter only, and form no part of the claimed design.

The ornamental design for a feature of an air treatment device, as shownand described.